Profiles

I have a network with wireless user and user that travel. However, vista is
not holding the profiles. They can not log in to their domain profiles when
connecting wirelessly. I've tried to change the profile from roaming to
local but no luck. How can one accomplish setting up a local domain profile
instead of a roaming one. If I can't solve this issue Vista is no more and
we wil hve to go back to XP Please help!!!